Muffler.



PATENTED AUG. 25-, 1903.

L. P. MOOERS.

MUFFLER.

APPLICATION FILED JULY 16, 1902.

l1we7z 1 1 @M' N0 MODEL.

45/; fitcam QED/Wax Wi'fn eased 6/52. QMW

UNITED STATES Patented August 25, 1903.

. PATENT OFFICE.

LOUIS P. MOOERS, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS,TO PEERLESS MOTOR OAR COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF WESTVIRGINIA.

M UFFLER.

SPECIFICATION forming part of Letters Patent No. 737,443, dated August25, 1903.

Application filed July 16, 1902. Serial No. 116,767. (No model.)

T0 at whom it may concern.-

Be it known that I, LOUIS P. MOOERS, a citizen of the United States,residing at Oleveland, in the county of Ouyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Mufflers, of which thefollowing is a full, clear, and exact description, reference beinghad tothe accompanying drawings.

If in operating engines of different types the exhaust is permitted toflow directly into the atmosphere, a considerable puffing noise results.This is very objectionable, especially in connection withexplosion-engines which are used on motor-vehicles; and it is the objectof this invention to obviate that difficulty by a peculiar form ofmuffler set forth in the following description and claims andillustrated in the drawings.

Referring to the drawings, Figure 1 is a longitudinal cross-sectionshowing the device, and Fig. 2 is a vertical section on line 2 2 of Fig.1.

Referring to the parts by letters, A represents a casing closed at oneend bya funnelshaped ring B and at the other end by a head 0, in whichis secured the exhaust-pipe D, leading from the engine. The outside ofthis casing is wrapped with asbestos E or other suitablenon-heat-conducting material and has a jacket F around the outside ofthis asbestos.

The inside of the casing A is provided with several chambers a, a, a aand a, which decrease in size from the inlet end of the casing to theoutlet. These chambers to a, &c., are formed by transverse partitions G,which have suitable'perforations g therein and cupshaped baffles g Thesepartitions are severally of such a size that they fit tightly within asleeve-like end portion h of a funnel-shaped ring II. These ringscorrespond in width to the chamber in which they are placed, so thattheir small ends, from which the gas is discharged, are in closeproximity to the cupshaped baffles g and the force of the discharge fromthe ring will be taken up within these baffle-cups 9 A funnel-shapedring H is provided for the head 0 at the inlet end i of the casing.

The operation of the device is as follows:

As the discharge comes from the engine the volume of the gas isconcentrated by the rmg ,H and directed into the first baffle-cup on ofsuflicient size to accommodate the charge that has become cooled. Theoperation is continued until the gas is finally discharged from thefunnel-shaped ring B at the end into the atmosphere, the noise of theexhaust having been spent by the several compressions of the gas and inthe circuitous route the gas has taken in its progress.

This device is designed particularly for use on automobiles which areoperated by explosive-engines; but it will be readily seen that it canbe applied to any sort of engine and perform the same function.

Having described my invention, I claim- 1. In a muffler, the combinationwith the casing, of partitions separating the easing into chambersdecreasing in size from the inlet to the outlet, rings for concentratingthe charge within said casing and baffles for operating in connectionwith said rings for baffling the charge, substantially as described.

2. In a muflier, the combination with the casing, of partitionsseparating the easing into chambers of different sizes, rings forconcentrating the charge within said casing, said rings having openingsincreasing in size from the inlet to the outlet and baffles operating inconnection with said rings for baffling the charge, substantially asdescribed.

3. In a muffler, the combination with the casing, of perforatedpartitions within said casing separating it into chambers decreasing insize toward the outlet-opening, funnelshaped rings within each of saidchambers for concentrating the charge, and baflies operating inconnection With said ring, substantially as described.

4. In a muffler, the combination with the casing, of partitionsseparating the easing into chambers decreasing in size from the inlet tothe outlet, a funnel-shaped ring Within each of said chambers forconcentrating thecharge, said rings being provided With openingsincreasing in size from the inlet to the outlet and baffles operating inconnection With said rings, substantially as described.

5. In a muflier, the combination With the casing, of perforatedpartitions within said casing separating it into chambers decreasing insize toward the outletopening, funnelshaped rings Within each of saidchambers for concentrating the charge, and cup-shaped baffles operatingin connection with said ring, substantially as described.

ing in size from the inlet to the outlet of said casing and a suitablejacket for said casing, substantially as described.

In testimony whereof I hereunto aifix my signature in the presence oftwo Witnesses.

LOUIS P. MOOERS. Vitnesses:

13. W. BRooKETT, ALBERT ll. BATES.

